Abstract: Hierarchical state diagrams are reflected in a tree structure with the initial state of the diagram represented as the parent node, intermediate states represented as intermediate levels of the hierarchy, and final states represented as the lowest level in the hierarchy. Information on the modification(s) on a child or subsequent level is transferred to the parent node. Such information includes quantifying and displaying of the modification(s). Accordingly, content and extent of any modifications to the diagram can be viewed at the parent node without requiring review of different levels in the hierarchy to view modifications to the state and/or transition in such levels.

Abstract: Hierarchical state diagrams are reflected in a tree structure with the initial state of the diagram represented as the parent node, intermediate states represented as intermediate levels of the hierarchy, and final states represented as the lowest level in the hierarchy. Information on the modification(s) on a child or subsequent level is transferred to the parent node. Such information includes quantifying and displaying of the modification(s). Accordingly, content and extent of any modifications to the diagram can be viewed at the parent node without requiring review of different levels in the hierarchy to view modifications to the state and/or transition in such levels.

Abstract: In an information display method applied to an information management system for managing a plurality of jobs, a plurality of information items, respectively associated with the plurality of jobs, are stored. When a user designates an attribute serving as a reference for information classification, information contained in the plurality of information items is classified with reference to the designated attribute and the classified information is displayed.

Abstract: There is provided an information management method of managing information generated in a group including a plurality of persons. In case of receiving a first request, first information indicating a hierarchical order of a plurality of jobs is displayed on a screen. In case of receiving a second request, second information indicating a time sequence in executing the plurality of jobs is displayed on a screen. In case of receiving a third request, third information indicating a relationship between each job and a final product finally produced in executing that job is displayed on a screen. In case of receiving a fourth request, fourth information indicating a relationship between each job and an intermediate product generated during that job is displayed on a screen.

Abstract: A polishing method for wafer, comprises the steps of; adhering a wafer to a wafer adhesion part of a holding plate through a wax, and rubbing the wafer with a polishing pad, wherein grooves are formed on the wafer adhesion part and extend to the outside of the wafer adhesion part.